Bi: prefix, means two.
Bi-alar: two-winged; applied to Diptera.
Biarcuate: twice curved.
Biareolate: with two cells or areoles: see bilocular.
Bicaudate: having two tails or anal processes.
Bicolored: with two colors that contrast to some extent.
Bicornute: with two horns or cephalic processes.
Bicuspidate: ending in two points or cusps.
Bidactylate: with two fingers or finger-like processes.
Bidentate: two-toothed.
Biemarginate: twice emarginate; with two excisions.
Bifarious: pointing in opposite directions.
Bifasciate: with two bands or fascia.
Bifid: divided into two parts; split; applied in Coleoptera to tarsal claws which are divided so that the claws lie side by side: see biparted.
Biflabellate: antennae with fan-like process on two sides.
Bifurcate: divided, not over half its length, into two dull points; forked.
Bifurcation: a forking or division into two: the point at which a forking occurs.
Biguttate: with two drop-like spots.
Bijugum: in two pairs.
Bilamellar: divided into two lamina or plates.
Bilateral -eriter: with two equal or symmetrical sides.
Biliary vessels: see malpighian tubules.
Bilineate -us: with two lines.
Bilobate -ed: divided into two lobes.
Binocular: having two cells or compartments: see biareolate.
Bimaculate: with two spots or maculae.
Binate: in pairs: consisting of a single pair.
Binotate: with two rounded spots.
Explanation of Terms Used in Entomology · The Wunder Library — complete classics, free to read, with narration.